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  <div class="section" id="python-objects-and-qvariant">
<h1>Python Objects and QVariant<a class="headerlink" href="#python-objects-and-qvariant" title="Permalink to this headline">¶</a></h1>
<p>Qt uses the <tt class="docutils literal"><span class="pre">QVariant</span></tt> class as a wrapper for any C++ data type.  PyQt allows
any Python object to be wrapped as a <tt class="docutils literal"><span class="pre">QVariant</span></tt> and passed around Qt&#8217;s
meta-object system like any other type.</p>
<p>PyQt will try to convert the Python object to a C++ equivalent if it can so
that the <tt class="docutils literal"><span class="pre">QVariant</span></tt> can be passed to other C++ code that doesn&#8217;t know what a
Python object is.</p>
<p>Version 2 of PyQt&#8217;s <tt class="docutils literal"><span class="pre">QVariant</span></tt> API will automatically convert a <tt class="docutils literal"><span class="pre">QVariant</span></tt>
back to a Python object of the correct type.</p>
<p>Version 1 of the <tt class="docutils literal"><span class="pre">QVariant</span></tt> API provides the <tt class="docutils literal"><span class="pre">QVariant.toPyObject()</span></tt> method
to convert the <tt class="docutils literal"><span class="pre">QVariant</span></tt> back to a Python object of the correct type.</p>
<p>Both versions will raise a Python exception if the conversion cannot be done.</p>
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